Wednesday, February 2, 2011

SPC Tornado Watch 11

SPC Tornado/Severe Thunderstorm Watches
Storm Prediction Center

SPC Tornado Watch 11
2 Feb 2011, 12:24 am

WW 11 TORNADO AL FL GA CW 020020Z - 020500Z
WW 0011 Thumbnail Image
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 11
NWS STORM PREDICTION CENTER NORMAN OK
620 PM CST TUE FEB 1 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHEAST ALABAMA
       WESTERN AND CENTRAL FLORIDA PANHANDLE
       SOUTHWEST GEORGIA
       COASTAL WATERS

EFFECTIVE THIS TUESDAY EVENING FROM 620 PM UNTIL 1100 PM CST.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF DOTHAN
ALABAMA TO 25 MILES WEST SOUTHWEST OF PANAMA CITY FLORIDA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 10...

DISCUSSION...SRN AL/FAR WRN FL PANHANDLE SQLN EXPECTED TO CONTINUE E
AT 40+ KTS...WHILE INDIVIDUAL STORMS/LEWPS MOVE NNE ALONG IT AT A
SOMEWHAT GREATER SPEED.  AHEAD OF THE SQLN...MORE ISOLD STORMS HAVE
FORMED ALONG A CONFLUENCE AXIS EXTENDING FROM SE AL SSW INTO THE
GULF OF MEXICO /REF MCD 75/.  WHILE SFC-BASED INSTABILITY WILL
REMAIN WEAK...KEVX VWP APPEARS FAVORABLE FOR SUSTAINED
SUPERCELLS...GIVEN EXISTING STORMS.  COUPLED WITH GLANCING INFLUENCE
OF INTENSE MS VLY UPR VORT...SETUP MAY SUPPORT A CONTINUED RISK FOR
ISOLD TORNADOES AND LOCALLY DMGG WIND GUSTS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 23045.


...CORFIDI
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